Trestle.



,979. Patented 0st. l6, I900.

WI. MILLER.

TRESTLE.

( Application filed July 13, 1900.

(No Model.)

fame/mica && 7730256; @W 96 MICHAEL MILLER, OF GLENWOOD, IOWVA.

TRES'TLE.

SPECIFICATION forming part of Letters Patent No. 659,979, dated October16, 1900.

Application filed July 13, 1900. Serial No. ZSABZ. (No model.)

To ctl whont it may concern:

Be it known that 1, MICHAEL MILLER, a citizen of the United States,residing at Glenwood, in the county of Mills and State of Iowa, haveinvented new and useful Ii'nprovements in Trestles, of which thefollowing is a specification.

My invention relates to trestles 5 and the objects of the same are toprovide a simple, strong, and efficient device of this character whichcan be used for any purpose as a support for workmen, which can becheaply manufactured, which can be easily and quickly adjusted andhandled, and which, although comparatively light in weight, forms arigid and properly-braced support or trestle. These objects are attainedby means of the construction illustrated in the accompanying drawings,in which- Figure l is a perspective view of a trestle made in accordancewith my invention. Fig. 2 is a vertical section of the head of thetrestle. Fig. 3 is a detail perspective of the dog which holds theput-log in place. Fig. 4 is a similar view of the brace-rod for holdingthe end leg in place.

Like numerals of reference designate like parts wherever they occur inthe different views.

In said drawings the numeral 1 designates the head of the trestle-legsand consists of a block or piece of wood or metal having a slot 2 at itsupper end to form the recess for the put-log 3 and the inclinedleg-sockets 4 4 4 in its under side. The upper ends of the legs 5 5 areinserted in the sockets 4 1 and are held firmly in place therein by atie rod or bolt 6, having a thumb-nut fitted to one end thereof, asshown. The cross-brace 7 extends from one leg 5 to the other at a pointnear the longitudinal center of the trestle, and a headed tie-bolt 8extends through the legs 5 and through the brace 7. A thumb-nut isfitted to the end of bolt 8 for holding the legs and brace rigidlytogether.

An end leg 9 serves to brace the trestle against endwise movement, andthe upper end of this leg 9 is held in the socket 4. in the head 1. Abolt 12 passes through the head 1 to hold the leg 9 in position and toform a fulcrum for a pivoted dog 13. This dog has a pointed hook it atits outer end, which is designed to be driven into the put-log 3 whenall the parts are adjusted. A thumb-nut 15 is used for clamping theseparts together when adjusted.

To brace the end leg 9 at the desired inclination, braces 16 extendfrom'opposite sides of the leg 9 and are secured to said log by a bolt9, and the opposite ends of the braces are bent downward to form toes orhooks 17, which engage holes in the upper surface of cross-brace 7.

It will be understood that while but one of the ends or tripods of thetrestle has been described there are two used, and they are ofsubstantially identical structure, as shown in Fig. 1 of the drawings.

It will be obvious from the forgoing that my trestle is simple inconstruction, of comparatively few parts, easily adjustable, and whichcan be readily taken apart and packed in a small space for shipping orfor moving from place to place. When the trestle is set up for use, itis braced from all directions and is strong, durable, and efficient forits purpose.

Having thus described my invention, what I claim is- A trestlecomprising the metallic heads each having three inclined sockets in theunder sides and a slot in the upper ends, inclined legs fitted into saidsockets and secured by bolts, braces for holding said legs inrelativelyinclined positions, a put-log seated in the slots in the upperends of the metallic heads, and dogs pivoted one to each metallic headand provided each with a prong driven into the put-log, substantially asdescribed.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit nesses.

MICHAEL MILLER.

Witnesses:

C. E. DEAN,

E. MARSHALL.

